Finding the Fourth Proportional to 680,227,738.08, 938,711,976.37 and 382,869,807.99
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Solution
The fourth proportional to 680,227,738.08, 938,711,976.37 and 382,869,807.99 is: 528,359,039.23
Step by Step Solution
- Step 1: Write the proportion equation
680,227,738.08 : 938,711,976.37 = 382,869,807.99 : x - Step 2: Convert to fraction form
680,227,738.08/938,711,976.37 = 382,869,807.99/x - Step 3: Cross multiply
680,227,738.08x = 938,711,976.37 × 382,869,807.99 - Step 4: Simplify right side
680,227,738.08x = 359,404,474,150,695,296 - Step 5: Solve for x
x = 359,404,474,150,695,296/680,227,738.08 - Step 6: Final answer
x = 528,359,039.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.